Acetylene-lamp.



A. L. HANSEN.

l-ICIETYLENE LAMP.

APPLICATION FILED Nov. 1I. 1914.

L lwg. Patented Apr. 25, 1916. Eig/9.1 Zw

By .7M

f Aw@ WWI/165565: l

THE COLUMBIA PLANOGRAPH p0., WASHINGTON, n. c.

AG'IE L. HANSEN, OF CHICAGO, ILLINOIS, ASSl.'G\I\TOI-t` 'IO JUSTRITE MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION CF ILLINOIS.

ACETYLENE-LANIP.

Application filed November 11, 1914.

f 70 all whom may concern Be it known that I, AUGIE L. HANSEN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Acetylene- Lamps, of which the following is a specification.

My invention relates to acetylene lamps, particularly to miners lamps.

Among the important objects of the invention are to provide improved and more practical construction and arrangement for lmaintaining a. flame during the time that the carbid supply for the lamp is being replenished; to provide a construction involving a carbid container having` a burner and so organized that it may be bodily removed' from the lamp without disturbing the flame at the burner; to provide construction and arrangement which will automatically place the carbid container in communication with the water supply upon application of the carbid container to the lamp support; to produce a lamp which is very compact, and has a low center of gravity; and in general to provide a lamp which is more desirable and better adaptable for miners use than lamps heretofore used.

The various features of the invention will be clearly understood from the accompanying drawings in which- Figure 1 is a side elevational view of the lamp showing it in place on a miners cap; Fig. 1L is an elevational view of a carbid container, Fig. 2 is a top view of the lamp, Fig. 3 is a front view, and Fig. 4 is a sectional view on plane %4, Fig. 3.

A. represents the water container and C the carbid container, both these parts eX- tending forwardly from a supporting back or plate 10. The water container is of oblong` or elliptic transverse cross section and the plate 10 may forni the rear wall thereof. rlfhe water container has the usual water supply inlet opening 11 provided with a cap or plug structure 12 which. may be hinged to the container as shown.

rIhe carbid container comprises the cylindrical shell 13 which has the wall or partition 14 set inwardly a distance from the front edge 15. Secured to the inner face of the wall 14 at the center thereof is the head 16 from which the threaded stud Specification of Letters Patent.

Patented Apr. 25, 121.116..

Serial No. 871,456.

17 extends forwardly through the Wall to be engaged by the threaded inner end of the burner tube 18. This burner tube extends through and is secured to the center of a concave reflector 19 and its outer end supports the burner tip 20. A washer 21 is secured to the back of the reflector to be interposed between the reflector and the edge 15 when the sleeve is threaded on to the stud 17 in order that the reflector will engage the edge with gas-tight fit to form with the wall 14 and the shell 13 a chamber 22, the wall 14 being preferably concave to be parallel with the refiector. Openings 23 through wall 14 connect the carbid containing space c with the chamber 2:2, and the burner tube has openings 24. However, filter material is inserted in the chamber 22 through which the gas must pass before it can reach the burner tube. As shown, the filter material is in the form of one or more washers .25 of felt, wool, or the like, and these washers are of less diameter than the diameter of the chamber 22 to leave the annular space 22 into which the gas passageways 23 open. The space 22 forms an eX- pansion or pressure equalizing chamber for the gas which streams into the space through passageways 23 and the flame will therefore be more uniform. The gas passing with considerable pressure through the small openings 23 wilLbe apt to carry particles of carbid, but as soon as the chamber 22 is reached and the gas is allowed to expand. these solid particles drop to the bottom of the chamber and will therefore not clog up the filter material.

The rear wall 26 of the carbid chamber is in the form of a removable cover whose central portion is deflected inwardly, as clearly shown in Fig. 4. An internally threaded thimble 27 extends through and is secured at the center of the cover and receives the threaded outer end of a tube 2S whose threaded inner end is secured to the threadedA stud 29 extending inwardly from the head 16. The cover 26 carries the washer 30 for engaging edge 31 when the thimble is screwed to the tube 28. rIhe tube 28 forms the water supply duct to the carbid con tainer and also serves to secure the carbid container to the supporting back or plate 10, the lower end of this plate supporting an internally threaded lug or socliet 32 into which the outer end of the tube 28 threads. rlhe tube 28 has water outlets 33 to the carbid chamber c and the water inlet 34 through the end ofthe tube is surrounded by a valve seat 35 against which a ball valve 36 is pressed by a spring 37 interposed between the ball and the stud 29. Vhen the carbid container is removed from its supporting socket 32 the ball valve is closed and the chamber c sealed against gas escape except by way of the openings 23 and the burner. Extending axially through the socket 3 2 is the pin 3S whose outer end engages with the ball valve to force it from its seat ust before the carbid container is secured in final position to the socket. This will then leave the tube 23 open for the iniow of water, and such water flow is controlled by suitable valve mechanism. Extending through the water container and alongside the supporting plate 10 is the water duct 39 which has the entrance slot 40 open to the water container. This duct extends to the socket 32, which has the valve opening 41 surrrounded by the conical valve seat 42. A stem 43 has the conical valve end 43 for coperating with the valve seat to control the opening 41 and this valve stem has the externally threaded head 44 which threads into the upper end of the duct 39. Secured to the outer end of the head 44 is the lever 45 and a detent spring 46, lateral movement of the lever, by virtue of the threaded engagement of the valve stem head with the duct, resulting in vertical adjustment 'of the valve stem and control of the valve outlet 42. During such swing of the lever 45 the end of detent spring 46 coperates with the detent projections 47 on the top wall of the water container to yieldingly lock the lever in adjusted position. When the valve is opened water can flow from the water container through entrance slot 40 into the duct 39, thence through valve opening 42 into socket 32, and from the socket it will flow through the valve opening 34 into tube 28 and through openings 33 to the carbid in chamber C. Preferably the inner end of the thimble 27 overhangs the openings 33 to vshield these openings against the entrance of carbid particles.

Adequate provision is made for safety under abnormal pressure conditions. Vater in entering the duct through slot 40 will fill the duct and will act as a water seal to prevent the back flow or escape of gas under ordinary pressure conditions when the valve 43 is open. Should the pressure become abnormal and unable to find relief through the burner, the water between the duct and the valve will be forced back into the water container to allow the excess gas to flow into the container and to the exterior through relief openings y48 provided in the cap structure 12. Provision is also made to guard against excess pressure at a time when the water valve is closed and the burner is unable to relieve the pressure. The valve stem 43 is tubular and a rod 49 of only slightly less diameter than the bore of the valve stem is inserted in the stem to form a capillary passageway between the rod and stem. This passageway fills with water as soon as the water valve is opened and is always open to the socket 32 and therefore to the carbid container when such container is secured to the socket. lith this arrangement escape of gas through the capillary passageway will be prevented by the water seal when the gas is at ordinary pressure. However, should the pressure become sufliciently excessive when the water valve is closed the capillary passageway will be cleared of water by the pressure and excess gas will escape to the open from the upper end of the valve stem. The rod 49 may also be utilized for keeping the valve seat 42 and opening 41 clear, the lower end 49n of the stem being therefore preferably enlarged to form a cleaning end, and the upper end 49" being so arranged that it will turn with the stem in order to swing the enlarged end 49 in the water valve opening. As shown, the upper end 49b is deflected into parallelism with the rod 49 so that when the arm is swung to adjust the water flow the end 49 will likewise be swung to effect rotation of the rod.

The lamp described is particularly adaptable for miners use and I have shown a hook 50 and clamp 51 secured to the back of the supporting plate 10 for cooperating with the shield 52 on a cap 53. The lamp cannot, of course, be too heavy and on account of the weight limit it is impossible to provide a carbid container of great enough capacity to burn the lamp for a complete working shift. It therefore becomes necessary to replenish the carbid container. Each lamp outfit therefore comprises a complete lamp and one or more spare carbid container structures Cin order that as soon as'carbid in one container on the lamp becomes exhausted the container can be unscrewed from the supporting plate and another container substituted. The miner knows from the behavior of the flame when the carbid is be coming weak, and he then unscrews the container. Before unscrewing the container he usually opens the water valve to give an extra charge of water to the container and then closes the water valve. Then when the container is unscrewed the ball valve 36 is withdrawn from the pin 38 and the inlet 34 is closed and the removed carbid container is sealed against escape of gas except through the burner tube. After removal of the carbid container it can be set up on end as shown in Fig. 1, and sufiicient gas will still bie generated to give sulicient light long enough to enable the miner to readily and accurately apply a spare carbid container to his lamp. To enable him to more readily and accurately start the thread at the end of tube 2S in the socket 32 a guide plate 54C may be extended downwardly from the water container to form a curved guide abutment for the carbid container. After the carbid container has been firmly secured in place and its water valve inlet thereby automatically opened, the main water valve is opened, and as soon as sufficient gas has been generated it can be lighted at the tip by holding the tip against the flame of the still burning removed container. Any number of spare containers may be taken, depending upon the length of the shift. The construction is preferably such that the end of the burner tip and the end of the tube 28 are well within the concavity of the reflector and the cover 26 respectively in order to protect such parts from injury and dirt and also to allow the container to rest securely on its ends. When a container is used as a lamp it isset with the reflector end up, and when it is to be filled with carbid it is set with its cover end up.

The central threaded connections of the reflector and cover respectively with the axial stud 17 and tube 28 assures accurate sealing engagement, considerable leverage being provided at the edges of the refiector and cover respectively to enable them to be tightly drawn up against the respective edges of the container shell 13. To provide better friction surface the edges of the cover and reflector may be dented or knurled.

The axial threaded engagement of the carbid container with the socket on the supporting plate gives a very rigid and durable connection. The particular shapes of thewater and carbid containers give them great strength and the lamp as a whole is of substantial and pleasing appearance. rThe water valve controlling lever mechanism is well protected against accidental displacement.

I do not of course desire to be limited to the exact construction, arrangement and operation shown and described as modifications are no doubt possible which would still come within the scope of the invention.

I claim the following:

l. In a lamp of the class described, the combination of a water container, an L- shaped duct communicating at its upper end with said water container, main valve mechanism for controlling the flow of water into said duct from the water container, a cylindrical carbid container having a water intake tube disposed axially therein and communicating with the interior thereof, the outer end of said tube being adapted for detachable connection with the lower end of said duct, valve mechanism within said tube for closing the tube inlet when the carbid container is disconnected from said duct, andnieans for openingsaid valve mechanism for the .flow of water into said tube from the duct when said carbid container is secured to the duct.

2. In a lamp of the class described, the combination of a supporting plate, a water container extending therefrom, a carbid container, a tubular projection on said supporting plate and a pipe connecting it with the water container, a tubular projection on said carbid container having a passageway therethrough communicating with the interior of the carbid container', said projections being adapted to engage with one another to detachably secure the carbid container to the supporting plate, means for controlling the water flow from the water container' to the carbid container when the containers are thus connected, and a burner for receiving the generated gas.

3. In a lamp of the class described, the combination of a water container, a socket connected with said water container to receive water therefrom, a carbid container' having a stud for engaging said socket, said stud having a water passageway therethrough communicating with the interior of the carbid container, a valve closing said passageway when said container is removed from said socket, means for automatically opening said valve upon application of said stud in said socket whereby to establish water communication between said socket and the interiorof said carbid container, and a burner for receiving the generated gas.

4f. In a lamp of the class described, the combination of a supporting wall, a water container extending laterally from said wall, a water duct extending from said container and having a laterally extending outlet socket, valve mechanism controlling the flow of water through said duct, a cylindrical carbid container having axial connection at one end with said socket to receive water from said duct, and a burner on said carbid container.

5. In a lamp of the class described, the combination of a supporting wall, a water container extending laterally from said wall, a socket extending laterally from said wall, a duct connecting said container and socket, valve mechanism controlling the flow of water through said duct, a cylindrical carbid container having axial connection at one end with said socket, a reflector at the other end of said carbid container, and a burner associated with said reflector and communicating` with the container.

G. In a lamp of the class described, the combination of a supporting plate, a water container extending therefrom, said plate having a laterally extending socket, a valve controlled connection between said container and socket, a cylindrical carbid container having an axial stud at one end adapted for detachable connection in said socket, said stud having a passageway to the interior of the carbid container, a removable refiector at the outer end of said carbid container, and a burner carried by said reflector.

7. In a lamp of the class described, the combination of a water container, a socket, a valve controlled connection between said socket and container, a carbid container comprising a cylindrical shell, a reflector secured to one end of said shell and provided with a burner, a cover for the other end of said shell, an axial extending threaded stud, said coverl having threaded engagement with said stud to be thereby secured to the cylindrical shell, said threaded stud extending beyond said cover after application of the cover, and said socket being threaded to receive the projecting end of said stud, said stud having a passageway connecting the socket with the interior of said shell.

S. In a lamp of the class described, the combination of a water container, a socket, a valve controlled connection between said socket and container, a. carbid container comprising a cylindrical shell, a reflector secured to one end of said shell and provided with a burner, a cover for the other end of said shell, an axial extending threaded stud, said cover having threaded engagement with said stud to be thereby secured to the cylindrical shell, said threaded stud extending beyond said cover after application of the cover, and said socket being threaded to receive the projecting end of said stud, said stud having a passageway connecting` the socket with the interior of said shell, a valve closing said passageway when said stud is removed from the socket, and means for automatically opening said valve when said stud is secured into said socket.

9. In combination in a lamp of the class described, a water container and a water connection extending therefrom, a carbid container structure attachable to and detachable from said connection, said structure comprising a cylindrical shell, a removable reflector closing one end of said shell and supporting a burner, a cover closing the other end of said shell, and means for providing inlet for water to the carbid container when said container is attached to the connection and for closing such inlet when the container is detached.

l0. In a lamp of the class described, the combination of a water container, a water pipe extending therefrom having a threaded end, a cylindrical carbid container having an axially extending inlet pipe threaded at its outer end for coupling engagement with the threaded end of the pipe leading from the water container, means for controlling the flow of water to the carbid container when the containers are coupled together, a removable reliector at the outer end of the carbid container, and a burner carried by said reflector.

11. In a lamp of the class described, the combination of a water container, a water pipe leading therefrom, a cylindrical carbid container, a wall closing the outer end of said carbid container, a stud extending axially from said wall to the inner end of said carbid container, a cover for the inner end of said carbid container having axial threaded engagement with said stud, the outer ends of said water pipe and stud being threaded for coupling engagement with each other, said stud having a water passageway therethrough, means for controlling` the How of water through said pipe and stud passageway when the containers are coupled together, and a burner mounted on the outer end of said carbid container.

In witness whereof, I hereunto set my hand this 9th day of November, A. D., 1914.

AUGIE L. HANSEN.

lVitnesses C. J. SCHMIDT, EDMUND G. INennsoLL.

Gopies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents. Washington, D. C. 

